MC68HC08AB16A Datasheet, PDF (41/380 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Technical Data — MC68HC08AB16A
Section 2. Memory Map
2.1 Contents
2.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
2.3 Unimplemented Memory Locations . . . . . . . . . . . . . . . . . . . . . 41
2.4 Reserved Memory Locations . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.5 Input/Output (I/O) Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2.2 Introduction
The CPU08 can address 64K-bytes of memory space. The memory
map, shown in Figure 2-1, includes:
• 16,384 bytes of user ROM memory
• 512 bytes of EEPROM
• 512 bytes of random-access memory (RAM)
• 48 bytes of user-defined vectors
• 307 bytes of monitor ROM
2.3 Unimplemented Memory Locations
Accessing an unimplemented location can cause an illegal address
reset if illegal address resets are enabled. In the memory map
(Figure 2-1) and in register figures in this document, unimplemented
locations are shaded.
MC68HC08AB16A — Rev. 2.0
MOTOROLA
Memory Map
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Technical Data
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